Heat transfer enhancement

Research

I am interested in studying the motion of nano-sized particles subjected to Brownian motion and heat transfer. Our objective is to use the immersed boundary numerical technique as a tool to better understand the effect that Brownian forces have on the overall heat transfer process. The conventional approach to perform Brownian dynamic simulations is based on the use of a random force in the particle motion such that the fluctuation-dissipation theorem is satisfied. Our preliminary computational results suggest an increase in the thermal conductivity of the bulk fluid. Results are presented for several particles in a two-dimensional space.

Contact:

  • P. Phelan, ASU
  • J. Rafael Pacheco, ASU

    • Related publications:

  • Phelan, P. and Pacheco, J.R., 2007, Numerical computation of the effects of brownian motion on the effective thermal conductivity of suspensions., Proceedings of the ASME Heat Transfer Division 2007, 2007 IMECE2007-42706
  • Pacheco, J.R., Pacheco-Vega, A., Rodic T., Peck, R.E. Numerical simulations of heat transfer and fluid flow problems using an immersed-boundary finite-volume method on non-staggered grids. Numerical Heat Transfer B: Fundamentals. 48: pp. 1-24, 2005.
  • Pacheco-Vega, A., Pacheco, J.R., and Rodic T. A general scheme for the boundary conditions in convective and diffusive heat transfer with immersed boundary methods. Journal of Heat Transfer, 129(11): 1506-1516, 2007.
  • Tyagi, H., Phelan, P.E. Prasher, R., Peck, R. E., Lee T.-W., Pacheco, J.R., and Arentzen, P. Increased hot-plate ignition probability for nanoparticle-laden diesel fuel. Nanoletters, 8(5): 1410-1416, 2008.
    • Home· Publications·